Device for alining cutter-bars.



110.723,?24. v PATENTED MAR.24,1903.

E J. L. PATTERSON.

DEVICE FOR ALINING CUTTER BARS.

APPLICATION FILED AUG. 14, 1902.

no MODEL.

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UNIT D STATES PATENT OFFICE.

JAMES L. PATTERSON, OF LEAF RIVER, ILLINOIS.

DEVICE FOR ALINING CUTTER-BARS.

SPECIFICATION forming part of Letters Patent No. 723,724, dated March24, 1903.

Application filed August 14, 1902. Serial No. 119,661. (No model) A I Toall whom it may concern:

Be it known that I, JAMES L. PATTERSON, a citizen of the United States,residing at Leaf River, in the county of Ogle and State of Illinois,have invented certain new and useful Improvements in Devices for AliningCutter- Bars, of which the following is a specification.

The object of this invention is to adjust the cutter-bar of aharvesting-machine so that the cutter will be in perfect alinement withthe pitman.

In the accompanying drawings, Figure 1 is a plan view of the inner shoeof a harvestingmachine, showing my improvements. Fig. 2 is a section ondotted line a, Fig. 1. Fig. 3 is an elevation of the front portion ofthe shoe as seen from its inner face. Fig. 4 is a section on dotted lineb, Fig. 1.

The shoe 1 in the main is ofan old construction and has the rear end 2,a cutter-bar 8, cutter 4, and pitman 5 connected with the cutter-bar.From the forward portion of the shoe rise two half-bearings 6 and 7 Thebearing 6 has a cap 8 and the bearing 7 a cap 9. Screws 10 hold the capsin connection with the bearings. A screw 11 has a reduced end 12, andthe end 13 is reduced and sided. The reduced portions of the screw arelocated in the bearings 6 and 7 and the screw portion occupying thespace between the bearings. A block 14 has a screw-threaded openingadapted to receive the screw 11. A shank 15 extends from the block. Ayoke 16 has lugs 17 and 18, one lug held in con-necti0n with the shank15 and the other held in connection with the ear 2 by a pin 19. Thecoupling-bar 20 has a connection with. the yoke in any suitable manner.The shoe has a rib 21 extending across it in front of the block 14, anda bar 22 is located overthe block and connectingthe caps 8 and 9.

The coupling-bar has a connection with the main frame of the machine inthe usual manner, so that it is held transversely of the machine.

By means of a wrench placed on the squared end of the screw 11 the screwis turned, which will move the front end of the shoe toward the mainframe of the machine and cause the outer end of the cutter-bar to becarried forward. This movement of the cutter-bar will bring the cutterin line with the pitman in order that proper alineinent may be had whichwill permit the cutter to reciprocate freely through the fingers of thecutter-bar.

The rib 21 and bar 22 hold the block 14 in close connection with theshoe and serve to remove the strain from the screw.

Aspring 23 has a connection with the shoe and has an opening adapted toreceive the square end of the screw and serves to lock the screw againstmovement.

I claim as my invention- 1. In aharvesting-machine, an inner shoe, ascrew supported by the shoetransverse thereof, a blocksupported by thescrew and a yoke having one end connected to the block, the screwcapable of rotation.

2. In a harvesting-machine, an inner shoe, a screw supported by the shoetransverse thereof, a block supported by the screw, a yoke having oneend connected to the block,- the screw capable of rotation, and meansholding the screw against rotation. JAMES L. PATTERSON. Witnesses:

H. A. JIMMERSON,

-F. W. ROBINSON.

